modiloader | abb0c1672dbe8075b4ce021dca6f6d59833c3a588db73890374d32ea7edc8e6a

Analysis

max time kernel
119s
max time network
122s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
19-11-2024 09:30

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General

Target

abb0c1672dbe8075b4ce021dca6f6d59833c3a588db73890374d32ea7edc8e6aN.exe
Size

90KB
MD5

aec92f4aac514d1e574970b618db7af0
SHA1

8cb312f2e6301aefe412e4e34e1e75003f14ec55
SHA256

abb0c1672dbe8075b4ce021dca6f6d59833c3a588db73890374d32ea7edc8e6a
SHA512

e168d3913cfc087277aec0d4993ef17c1f0e3af090ea85792711f25bc5ad91c0589dc52a8b510aa8059d9abdda20bfd027df17be189354633ac953bea1a3b2f6
SSDEEP

1536:UiYwjQt6QJvzZsgDIWzm/xsXfv+hYhyQQyV5uv4JBrB7w5VRGulTG1ZCL8nj1oDK:0wjZQJvzZsgsW6/Afv+hYfQIm4/rdE3Y

Score

10^/10

modiloader discovery persistence trojan upx

Malware Config

Signatures

ModiLoader, DBatLoader
ModiLoader is a Delphi loader that misuses cloud services to download other malicious families.
trojan modiloader
Modiloader family
modiloader

ModiLoader Second Stage 4 IoCs

resource	yara_rule
behavioral2/memory/1372-53-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/1372-58-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/1372-55-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/1372-64-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-493223053-2004649691-1575712786-1000\Control Panel\International\Geo\Nation	abb0c1672dbe8075b4ce021dca6f6d59833c3a588db73890374d32ea7edc8e6aN.exe

Executes dropped EXE 3 IoCs

pid	Process
3948	csrsll.exe
4960	csrsll.exe
1372	csrsll.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-493223053-2004649691-1575712786-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Win Pdf = "C:\\Users\\Admin\\AppData\\Roaming\\Microsoft\\csrsll.exe"	reg.exe

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 2252 set thread context of 4544	2252	abb0c1672dbe8075b4ce021dca6f6d59833c3a588db73890374d32ea7edc8e6aN.exe	95
PID 3948 set thread context of 4960	3948	csrsll.exe	106
PID 3948 set thread context of 1372	3948	csrsll.exe	107

UPX packed file 20 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral2/memory/2252-0-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/2252-4-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4544-7-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4544-9-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4544-13-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/2252-12-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/files/0x0009000000023cdd-29.dat	upx
behavioral2/memory/3948-36-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4544-40-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/3948-41-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/3948-42-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/1372-45-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/1372-52-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/1372-53-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/3948-59-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/1372-58-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/1372-55-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/4544-62-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4960-63-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/1372-64-0x0000000000400000-0x0000000000414000-memory.dmp	upx

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 7 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	csrsll.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	csrsll.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	abb0c1672dbe8075b4ce021dca6f6d59833c3a588db73890374d32ea7edc8e6aN.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	abb0c1672dbe8075b4ce021dca6f6d59833c3a588db73890374d32ea7edc8e6aN.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	reg.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	csrsll.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	4960	csrsll.exe
Token: SeDebugPrivilege	4960	csrsll.exe
Token: SeDebugPrivilege	4960	csrsll.exe
Token: SeDebugPrivilege	4960	csrsll.exe
Token: SeDebugPrivilege	4960	csrsll.exe
Token: SeDebugPrivilege	4960	csrsll.exe
Token: SeDebugPrivilege	4960	csrsll.exe
Token: SeDebugPrivilege	4960	csrsll.exe
Token: SeDebugPrivilege	4960	csrsll.exe
Token: SeDebugPrivilege	4960	csrsll.exe
Token: SeDebugPrivilege	4960	csrsll.exe
Token: SeDebugPrivilege	4960	csrsll.exe
Token: SeDebugPrivilege	4960	csrsll.exe
Token: SeDebugPrivilege	4960	csrsll.exe
Token: SeDebugPrivilege	4960	csrsll.exe
Token: SeDebugPrivilege	4960	csrsll.exe
Token: SeDebugPrivilege	4960	csrsll.exe
Token: SeDebugPrivilege	4960	csrsll.exe
Token: SeDebugPrivilege	4960	csrsll.exe
Token: SeDebugPrivilege	4960	csrsll.exe
Token: SeDebugPrivilege	4960	csrsll.exe
Token: SeDebugPrivilege	4960	csrsll.exe
Token: SeDebugPrivilege	4960	csrsll.exe
Token: SeDebugPrivilege	4960	csrsll.exe
Token: SeDebugPrivilege	4960	csrsll.exe
Token: SeDebugPrivilege	4960	csrsll.exe
Token: SeDebugPrivilege	4960	csrsll.exe
Token: SeDebugPrivilege	4960	csrsll.exe
Token: SeDebugPrivilege	4960	csrsll.exe
Token: SeDebugPrivilege	4960	csrsll.exe
Token: SeDebugPrivilege	4960	csrsll.exe
Token: SeDebugPrivilege	4960	csrsll.exe
Token: SeDebugPrivilege	4960	csrsll.exe
Token: SeDebugPrivilege	4960	csrsll.exe
Token: SeDebugPrivilege	4960	csrsll.exe
Token: SeDebugPrivilege	4960	csrsll.exe
Token: SeDebugPrivilege	4960	csrsll.exe
Token: SeDebugPrivilege	4960	csrsll.exe
Token: SeDebugPrivilege	4960	csrsll.exe
Token: SeDebugPrivilege	4960	csrsll.exe
Token: SeDebugPrivilege	4960	csrsll.exe
Token: SeDebugPrivilege	4960	csrsll.exe
Token: SeDebugPrivilege	4960	csrsll.exe
Token: SeDebugPrivilege	4960	csrsll.exe
Token: SeDebugPrivilege	4960	csrsll.exe
Token: SeDebugPrivilege	4960	csrsll.exe
Token: SeDebugPrivilege	4960	csrsll.exe
Token: SeDebugPrivilege	4960	csrsll.exe
Token: SeDebugPrivilege	4960	csrsll.exe
Token: SeDebugPrivilege	4960	csrsll.exe
Token: SeDebugPrivilege	4960	csrsll.exe
Token: SeDebugPrivilege	4960	csrsll.exe
Token: SeDebugPrivilege	4960	csrsll.exe
Token: SeDebugPrivilege	4960	csrsll.exe
Token: SeDebugPrivilege	4960	csrsll.exe
Token: SeDebugPrivilege	4960	csrsll.exe
Token: SeDebugPrivilege	4960	csrsll.exe
Token: SeDebugPrivilege	4960	csrsll.exe
Token: SeDebugPrivilege	4960	csrsll.exe
Token: SeDebugPrivilege	4960	csrsll.exe
Token: SeDebugPrivilege	4960	csrsll.exe
Token: SeDebugPrivilege	4960	csrsll.exe
Token: SeDebugPrivilege	4960	csrsll.exe
Token: SeDebugPrivilege	4960	csrsll.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
2252	abb0c1672dbe8075b4ce021dca6f6d59833c3a588db73890374d32ea7edc8e6aN.exe
4544	abb0c1672dbe8075b4ce021dca6f6d59833c3a588db73890374d32ea7edc8e6aN.exe
3948	csrsll.exe
4960	csrsll.exe

Suspicious use of WriteProcessMemory 33 IoCs

description	pid	Process	procid_target
PID 2252 wrote to memory of 4544	2252	abb0c1672dbe8075b4ce021dca6f6d59833c3a588db73890374d32ea7edc8e6aN.exe	95
PID 2252 wrote to memory of 4544	2252	abb0c1672dbe8075b4ce021dca6f6d59833c3a588db73890374d32ea7edc8e6aN.exe	95
PID 2252 wrote to memory of 4544	2252	abb0c1672dbe8075b4ce021dca6f6d59833c3a588db73890374d32ea7edc8e6aN.exe	95
PID 2252 wrote to memory of 4544	2252	abb0c1672dbe8075b4ce021dca6f6d59833c3a588db73890374d32ea7edc8e6aN.exe	95
PID 2252 wrote to memory of 4544	2252	abb0c1672dbe8075b4ce021dca6f6d59833c3a588db73890374d32ea7edc8e6aN.exe	95
PID 2252 wrote to memory of 4544	2252	abb0c1672dbe8075b4ce021dca6f6d59833c3a588db73890374d32ea7edc8e6aN.exe	95
PID 2252 wrote to memory of 4544	2252	abb0c1672dbe8075b4ce021dca6f6d59833c3a588db73890374d32ea7edc8e6aN.exe	95
PID 2252 wrote to memory of 4544	2252	abb0c1672dbe8075b4ce021dca6f6d59833c3a588db73890374d32ea7edc8e6aN.exe	95
PID 4544 wrote to memory of 3976	4544	abb0c1672dbe8075b4ce021dca6f6d59833c3a588db73890374d32ea7edc8e6aN.exe	96
PID 4544 wrote to memory of 3976	4544	abb0c1672dbe8075b4ce021dca6f6d59833c3a588db73890374d32ea7edc8e6aN.exe	96
PID 4544 wrote to memory of 3976	4544	abb0c1672dbe8075b4ce021dca6f6d59833c3a588db73890374d32ea7edc8e6aN.exe	96
PID 3976 wrote to memory of 4628	3976	cmd.exe	100
PID 3976 wrote to memory of 4628	3976	cmd.exe	100
PID 3976 wrote to memory of 4628	3976	cmd.exe	100
PID 4544 wrote to memory of 3948	4544	abb0c1672dbe8075b4ce021dca6f6d59833c3a588db73890374d32ea7edc8e6aN.exe	101
PID 4544 wrote to memory of 3948	4544	abb0c1672dbe8075b4ce021dca6f6d59833c3a588db73890374d32ea7edc8e6aN.exe	101
PID 4544 wrote to memory of 3948	4544	abb0c1672dbe8075b4ce021dca6f6d59833c3a588db73890374d32ea7edc8e6aN.exe	101
PID 3948 wrote to memory of 4960	3948	csrsll.exe	106
PID 3948 wrote to memory of 4960	3948	csrsll.exe	106
PID 3948 wrote to memory of 4960	3948	csrsll.exe	106
PID 3948 wrote to memory of 4960	3948	csrsll.exe	106
PID 3948 wrote to memory of 4960	3948	csrsll.exe	106
PID 3948 wrote to memory of 4960	3948	csrsll.exe	106
PID 3948 wrote to memory of 4960	3948	csrsll.exe	106
PID 3948 wrote to memory of 4960	3948	csrsll.exe	106
PID 3948 wrote to memory of 1372	3948	csrsll.exe	107
PID 3948 wrote to memory of 1372	3948	csrsll.exe	107
PID 3948 wrote to memory of 1372	3948	csrsll.exe	107
PID 3948 wrote to memory of 1372	3948	csrsll.exe	107
PID 3948 wrote to memory of 1372	3948	csrsll.exe	107
PID 3948 wrote to memory of 1372	3948	csrsll.exe	107
PID 3948 wrote to memory of 1372	3948	csrsll.exe	107
PID 3948 wrote to memory of 1372	3948	csrsll.exe	107

C:\Users\Admin\AppData\Local\Temp\abb0c1672dbe8075b4ce021dca6f6d59833c3a588db73890374d32ea7edc8e6aN.exe
"C:\Users\Admin\AppData\Local\Temp\abb0c1672dbe8075b4ce021dca6f6d59833c3a588db73890374d32ea7edc8e6aN.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2252
- C:\Users\Admin\AppData\Local\Temp\abb0c1672dbe8075b4ce021dca6f6d59833c3a588db73890374d32ea7edc8e6aN.exe
  "C:\Users\Admin\AppData\Local\Temp\abb0c1672dbe8075b4ce021dca6f6d59833c3a588db73890374d32ea7edc8e6aN.exe"
  2⤵
  - Checks computer location settings
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:4544
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\DOPLJ.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:3976
  - - C:\Windows\SysWOW64\reg.exe
      REG ADD "HKCU\Software\Microsoft\Windows\CurrentVersion\Run" /v "Win Pdf" /t REG_SZ /d "C:\Users\Admin\AppData\Roaming\Microsoft\csrsll.exe" /f
      4⤵
      Adds Run key to start application
      System Location Discovery: System Language Discovery
      PID:4628
- - C:\Users\Admin\AppData\Roaming\Microsoft\csrsll.exe
    "C:\Users\Admin\AppData\Roaming\Microsoft\csrsll.exe"
    3⤵
    - Executes dropped EXE
    - Suspicious use of SetThreadContext
    - System Location Discovery: System Language Discovery
    - Suspicious use of SetWindowsHookEx
    - Suspicious use of WriteProcessMemory
    PID:3948
  - - C:\Users\Admin\AppData\Roaming\Microsoft\csrsll.exe
      "C:\Users\Admin\AppData\Roaming\Microsoft\csrsll.exe"
      4⤵
      Executes dropped EXE
      System Location Discovery: System Language Discovery
      Suspicious use of AdjustPrivilegeToken
      Suspicious use of SetWindowsHookEx
      PID:4960
  - - C:\Users\Admin\AppData\Roaming\Microsoft\csrsll.exe
      "C:\Users\Admin\AppData\Roaming\Microsoft\csrsll.exe"
      4⤵
      Executes dropped EXE
      System Location Discovery: System Language Discovery
      PID:1372

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\DOPLJ.txt

Filesize
145B

MD5
4eb61ec7816c34ec8c125acadc57ec1b

SHA1
b0015cc865c0bb1a027be663027d3829401a31cc

SHA256
08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

SHA512
f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

Download Submit
C:\Users\Admin\AppData\Roaming\Microsoft\csrsll.exe

Filesize
90KB

MD5
b2086a30e98fac8714ed2c40d910f3a0

SHA1
7abf2cb8184be68988fc2b2367a322508c34e2b0

SHA256
b122120a0622dc9eccca7dacc2a7d6bf3ec0023351116fcf0b619448c5218063

SHA512
ab0be6d1a1a654e45140deebc662f72c931ce4cf8f34c374587de2f5af0edea38be4b7ef3b811234144a574e9183485e58e48b798ef9eb2e4fe1a5e54528037c

Download Submit
memory/1372-53-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1372-52-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1372-45-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1372-58-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1372-64-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1372-55-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2252-6-0x0000000002440000-0x0000000002442000-memory.dmp

Filesize
8KB

Download
memory/2252-12-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2252-0-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2252-5-0x0000000002430000-0x0000000002432000-memory.dmp

Filesize
8KB

Download
memory/2252-4-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2252-3-0x0000000002410000-0x0000000002412000-memory.dmp

Filesize
8KB

Download
memory/3948-36-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/3948-59-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/3948-41-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/3948-42-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4544-9-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4544-40-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4544-13-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4544-62-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4544-60-0x0000000000410000-0x00000000004D9000-memory.dmp

Filesize
804KB

Download
memory/4544-7-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4960-63-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads